Grease-cup.



l. G. DEBBELER & F. J. KIRSCH.

GREASE CUP.

APPLICATION man Aus.5. 191e.

Patented Jan. 9, 1917.

nu: mwa-s farms ca., f-nomuma. wsmm: nw, n. e',

self-advancing means `against becoming clogged.

JOHN G'. DEBBELER AND FRANK J'. KIRSCI-I, 0F COVINGTON, KENTUCKY.

GREASE-CUP.

Application filed August 5, 1916. Serial No. 113,239.

T0 all whom t may concern:

Be it known thatvwe, AJOHN G. DEBBELER and FRANK J. KmsoH, citizens ofthe United States, and residents yof the city of Covington, in thecounty of Kenton and State of Kentucky, have invented certain new anduseful Improvements in Greasev Cups and the like, of which the`following-is a full, clear, and exact description, referencebeing hadto the accompanying drawing, forming part of this specification In theproviding'of grease cups for moving parts of machinery, particularly oflocomotives and such like, there has beenconsiderable difficulty in thepast in providing a fully practical self-advancing grease feed, whichwill not be liable to loss of parts while the machine is in operation,and which will not clog up and become ineffective under any conditions.l Y

Our grease cup, as. shown, is particularly ladapted for use withlocomotive side rods, but it will be understood that it can be lreadilymodified or used without modification on other pieces of machinery.

It is our object to provide a self-advancing feed of grease for hardgrease which has a visible member to indicate the amount of grease inthe device, and at the same time to fully protect the springs whichoperate the Vehave found that in spring feeds for grease cups, there islikely to result a collection of hard grease aroundv the spring whichprevents it from working. WeV have found that the plungers in the greaseretaining parts are likely tobecome hard and thus will not hug the wallsof the retainers. Again we have A found that the parts of the cup have atendency to jar loose and become lost, or in a locomotive side rod, forexample, to fly of'f and injure any person standing near b Y Thus it 1sour object to-remedy the above defects, and these various objects weaccomplish by that certain construction and arrangement of parts whichwill beherein- Specification of Letters Patent.

Patented Jan. 9, 1917.

after more specifically pointed out and claimed. v

In the drawing, Figure 1 is a central longitudinal section of the devicecomplete, showing the self-advancing feed in fully advanced position,Fig. 2 is a side elevation of the same. Fig. 3 is a bottom plan view ofthe eXpandible washer or piston which feeds the grease.` i

The member for receiving the grease is indicated at 1, and into Vitscrews a barrel 2, which is the grease container. On the end of thisbarrel is screwed vthe adjustable cap 8, which has a suitable aperturein its head for the pl'ungerri. As thel cap holds in the barrel theparts of the self-advancing feeding device, it is provided with a lockas follows: The cap is notched at 5 in one o r more places alongjitslower edge, and soldered or otherwise secured tothe side of the barrelis a spring finger 6 which is adapted to seat in the notch. 'As iscustomary, the notch has one sloping face whereby the finger will slipby when the cap is being screwed down on'the barrel, but will catch whenthe cap is moved in the opposite direction.

Mounted between two clips 7 7 at each side of the base of the springfinger, is a pin 8 having a bend at 9, and formed at its outer end intoa handle 10. When the handle is lying flat along the barrel, the bend at9 will also lie flat therewith. But when the handle is thrown upwardly,then the bend 9 will be swung out and. will raise the finger away fromthe notch in the cap.

Extending into the barrel through the cap is the plunger abovel referredto which has a series of holes 11 therein to permit of inserting acotter pin 12, which will serve to lock, or hold in place the plunger,while the plunger with the spring is being drawn taut or compressedtightly so as to permit the cap to be easily screwed onto the barrel,after it has been filled with grease.

` has a depending fla-nge 14 and inside of the Ziff) ange is set a splitring which serves to lreep the iiaiige spread out so as to closely t thewalls of the barrel. A metal plate 16 is set on the ring at the bottomand is secured to the plunger by means of a screw or in any otherdesired manner.

liiounted loosely over the plunger within the barrel are a set ofpreferably three telesooping cylinders 17 of light metal, one iittingwithin the other so as to be held by frictional contact in the variouspositions of telescopic adjustment. In the construction in whichfrictional contact is relied upon to hold the cylinders together, it islof course essential that the external diameter of each cylinder shall beslightly greater at its inner end than the internal diameter at theouter end of the cylinder within which it telescopes, so as to preventseparation of the telescopic members. This differenceof diameter is tooslight to be illustrated in the drawings, but will of course beunderstood. in other words,the cylinders are slightly conical, as isusual in suoli telescopic members, but only sufficient to hold them infrictional engagement. The upper and lower cylinders are provided withinwardly extending ends 18 and set loosely around the plunger within thecylinders is a spring 19 which engages these two ends. The cylinders arefree toslidewith regard to each oth r and are for the purpose ofpreventing hard grease from accumulating about the spring and stoppingits activity.

lWheii inV use the barrel is filled with grease, and the cap screwedonto it carrying` the various parts now described. rThe screwing down ofthe cap will cause the spring to force the cylinders apart, as the capwill bear on the upper cylinder, and the spring will be compressedbecause the grease will prevent the lower cylinder and the plunger andwasher from descending very far into the barrel. As the grease is usedup, the spring will separate the cylinders more and more, and thus thelower cylinder will force down the washer and `the plunger.

VThe plunger will indicate how full the barrel is of grease, and thescrewing down of t-he cap will permit of a further depression of thewasher by tightening up the spring.

is the washer will be tight at all times, and

as the cylinders are of a length to prevent the entire separation ofthem when the barrel is fully empty (Fig. 1), there will be no greaseleft which can get inside of the cylinders to clog up the spring.

rilhus it will be seen that the self-advancing feed, the protectionagainst loss of parts, the prevention of clogging of the spring, and'the various other objects of our invention are fully accomplished bythe above structure.

it is not desired because of the failure to mention the variousequivalent structures in the above mechanism to imply a limitation inthe claims that follow to any narrower interpretation than a fairconstruction of their language will provide.

Having thus described our invention,

lwith the said cylinders, and spring means within the cylinders forcausing the eXtension thereof with the consequent depression of thepiston in the retaining member.

2. 1n a grease cup, the combination with a grease retaining member, aset of telescoping members therein, a top member for said retainingmember adapted to bear on saidfcylinders, a piston within said retainingmember adapted to be maintained in contact with the said cylinders, andkspring means within the cylinders for causing the extension thereofwith the consequent depression of the piston in the retaining member,and means for preventing the loss of the top member from the retainingmember.

3. In a grease cup, the combination with a grease retaining member, aset of telescoping members therein, a top member for said retainingmember adapted to bear 011 said cylinders, a piston within saidretaining member adapted to be maintained in contact with the saidcylinders, and spring means within the cylinders for causing theextension thereof with the consequent depression of the piston in theretaining membei', said top member comprising a cap threadably mountedon the retaining member, and a spring finger on said retaining memberand adapted to engage said cap to prevent rotation thereof.

4i. ln a grease cup, the combination with a grease retaining member, aset of telescoping memberstherein, a top member for said retainingmember adapted to bear on said cylinders, a piston within said retainingmember adapted to be maintained in contact with the said cylinders, andspring means within the cylinders for causing the extension thereof withthe consequent'depression of the piston in the retaining member, saidtop member comprising a cap threadably mounted on the retaining member,and a spring finger on said retaining member adapted to engage said capto prevent rotation thereof, said finger being provided with means forthrowing it out of engagement with said cap.

5. In a grease cup, a cylindrical barrel, a plunger adapted to move insaid barrel, a washer on the end of the plunger, said w'asherhavingeXpandible means in Contact 'Ll C therewith to keep it in constantcontact with will be Spring-advanced in the barrel, and the wells ofseid barrel, a set of teleseopthe grease therein will be prevented froming cylinders loosely mounted over the Contact with the spring with theconsequent 10 plunger, a spring within the cylinders and cloggingthereof.

5 bearing on the upper and lower ones of said set, and a cap for saidbarrel .adapted to con- JOHN G. DEBBELER. tact with the cylinderswhereby the washer FRANK J. KIRSCH.

Copies of this patent may be obtained for ve cents each, by addressingthe "commissioner of Patents, Washington, D. C.

